﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace MTK_BieuThuc
{
    public class FreFix : StrategyString
    {
        public override string toString(BinaryExpr ex, Expression ex1,Expression ex2)
        {
           return ex.getOperator() + ex1.toString(this) + ex2.toString(this);
        }
    }
}
